Azolium Salts Functionalized with Cyanomethyl, Vinyl, or Propargyl Substituents and Dicyanamide, Dinitramide, Perchlorate and Nitrate Anions
作者:Ye Gao、Haixiang Gao、Crystal Piekarski、Jean'ne M. Shreeve
DOI:10.1002/ejic.200700666
日期:2007.11
4-triazolium salts with cyanomethyl, vinyl and propargyl substituents coupled with energetic anions, viz., perchlorate, nitrate, dicyanamide and dinitramide were prepared and characterized by NMR and IR spectroscopy, and elemental analyses. Since some melt < 100 °C, they can be classed as ionic liquids. Their densities range between 1.25–1.76 g cm–3. The standard enthalpies of formation of the salts were calculated
制备了一系列具有氰甲基、乙烯基和炔丙基取代基以及高氯酸根、硝酸根、双氰胺和二硝胺的官能化咪唑鎓盐和 1,2,4-三唑鎓盐,并通过核磁共振和红外光谱以及元素分析对其进行表征。由于一些熔体 < 100 °C,它们可以归类为离子液体。它们的密度范围在 1.25–1.76 g cm–3 之间。通过使用计算上可行的 DFT(B3LYP) 和 MP2 方法结合基于计算的盐密度的经验方法计算盐的标准形成焓。这些值的范围从 ΔH°f = –56 (12a) 到 851 (21c) kJ mol–1。在合成的盐中,双氰胺表现出最高的正形成热,但也表现出最低的密度。(© Wiley-VCH Verlag GmbH & Co. KGaA,